Magneto.



D. B. HUGHES.

MAGNETO.

APPLICATION FILED MAY I0 1912.

l 143, 1 1 9. Patented J une 15, 1915.

2 SHEETSSHEET 2.

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STATES PATENT 39W 13. HUGHES, OF NEW YORK, N. Y., ASSIGNOR TO THE GITL'ZEIIS TRUST COMPANY, OLE CLEVELAND, OHIOfA CORIORATION 01: 0.7. 118

MAGNETO.

Lidfilltd.

Specification of Letters Patent Patented June 19153 Application filed May 10, 1912. I Serial No. 696,337.

T (IN whom may concern:

Be it known that 1, Dow B. HUGHES, a citizen of the United States, residing at New York, the county of New York and State or". New Yorln have invented a certain new and useful Improvement in Magnetos, of which the following is a full, clear, and exact description.

This invention relates to magnetos and has for its object to provide a magneto con.- struction which has high efliciency; which is strong mechanically; which is comparatively inexpensiveto manufacture; and which is easy to assemble or disassemble.

The invention may be briefly summarized as consisting in certain novel details of construction and combinations and arrangements of parts which will be described in the specification and set forth in the appended claims.

In the drawings wherein I have shown the preferred embodiment of my invention, Figure 1 is a longitudinal vertical sectional View of the magneto with parts in elevation and parts broken away; Fig. 2 is an end view; and F ig. 3 is a detail view showing particularly the construction of the combined brush holding arm and connector between the armature winding. and transformer.

Referring now to the drawings, 9 represents the field magnets and 10 the armature having at its ends shaft extensions 11 and i 12 which are mounted in bearings 13 and 14 supported respectively by the end plate 15 and gear case 16.

"One end of the armature winding is grounded and the other is connected by aconductor (not shown) to an insulated collector ringl'? which is supported by the shaft extension 11- between the bearing 13 and the armature. A cylindrical extension '15 of the end plate 15 projects over and On the shaft extension 12 between the bearing 14. and the armature is secured a gear 18 which meshes with a larger gear 19 which is secured to a tubular hearing or bushing 20 journaled in a second end plate 21. Secured to the gear 19 is the rotary distrihuter member 22 in the form of an insulating support carrying a rotary contact 23 which is electrically connected to a contact disk 24 consisting in this case of the head of a screw located at the center of the rotary around the collector ring, as shown.

support 2-2. This contact dish or head is located on the inner side the support for a purpose tolbe explained) and the screw has a shank extending outwardly and provided on its outer end with a clamping 6 unit 2 1". The rotary contact is adapted to successively engage the stationary contacts 25 secured to a distributor case 26 which in turn is secured to the gear ca so 16.

Beneath the distributor the circuit 6 breaker the parts of which are inclosed within a cylindrical casing 27. The circuit breaker includes a cam 28 ha ling a hollow shank extending into the shaft extension 12 which is hollow as shown. The cam is se cured in place by a screw 29 having long shank extending through the cam shaft and the shaft extension 13 into a threaded opening; of the adjacent end plate or the armature. A washer 30 is placed between the headfof the cam 28 and the inner ring oi? bearing 14, and a second washer 31 placed between the bearing ring and ll e gear 18. By tightening the screw 2.), not only is the cam secured in position. but the washers referred to and the inner ring of bearing 1 1 are firmly clamped between the cam and the gear 18, and at the same time the hearing 14 is caused to serve as a thrust bearing; to eliminate all end play of the armature. latter result is accomplished when the screw 29 is tightened by giving the out-or ring of bearing 14 atight lit in it. hile the inner ring of the bearing 7 '5 fit on shaft extension 12 and by inner ring of bearing 1 -3 a ti; L extension 11 and the outer rir ing a loose fit on its support 15 In this application I am not features of the distributer or breaker except those which enter bination with and directly cooperate with other parts of the magneto structure.

In the space between the top of magnets and the armature. I place cy inder 32 containing a transformer and pr ably also a condenser. This c lindcr slipped into a recess provided for has hearing at one end in end plate 15 l opposite end in a cylindrical end plate 21. This cylin inner cylindricai wall terial, an outer W and inner and 0 metal casing which y former" 7 tory strength and; has openings v3i? ndrioel we so that said a .l stituto closed secondslcy, as would otherwise he the case if the cylindrical wall not interrupted by said openings.

@1169, terminal of I liner is connected to the heat.- 7 screw which is secured in the center of the outer end 32 of cylinder 32, and which has o, threaded shank projecting outwardly through said end oevond the end plate 15., l'tnother terminal 3d of the transformer extends through insulating supporting 35 which is secured in. the inner cylinder head 32", and projects through hearingbusht 1'9 intoptoximity with the e r 2% ot the distributor, Tllhe outer of 35 cont-sins s epr M which is elect initial and the contact dis-l 7 Between pose of giving the lllgltllhy h the e7 termed in. its

connecting" f cylin. at ut .5 l end. plate is titted ring or and 3?, which is adapted to be turned on said extension im- :1 pur pose to he .sziner. Tie ring 37 is provided with chub tubular hose in. which is seated a rigid arm 38, having at inner end a spring pressed brush 39, which bears upon the collector ring 1'2? The inner portion. of the arm 38 extends through an elongated slot 15 of the extension 15 so that the ring and arm may he turned through a suit able arc. At the upper endof the arm 38 is a head having on open slot -40, which receives the threaded shank of the screw 33, when said arm 38 is swung up weirdly to upright position, as shown by full lines in Fig, .2. This head, has on one side a cup or recess 40 which is adapted to receive a clamping nut all on the threaded shank of screw 33. Nhen this nut is screwed into tie recess, the arm 38 is prevented from turning-from the upright position, and at the some time the head 40 0;": the arm is electrically con no'cted to the threaded shank of the screw second. nut 42 is also provided on the shank of the screw, to serve as e look not and as a binding-post nut, inasmuch as o, conductor extending; to the cit nit breaker is adopted to he clamped between the two nuts.

It will he soon from the. above descrip tion that who? the transfer -owe into position,

rmei c the engagement c" control cents c oi the distrihz m 353 .is swung new tionnnd locked in.

oil? the M posiscrioed to the outwardly projecting termi no of the transformer or threaded shank of the screw 33, the collector 17 of the magneto,-or in other Words,-the magneto armature, is electrically connected in the proper manner to the trensformer, and at the some time, the transformer cylinder is I thus provide it rigid connecting and locking" means which is very efiiective for both purposes, and is for more effective than would be the'cc'se if I employed a separate holder for a brush, it separate locking means for the transformer cylinder, and

s flexible connection between the brush and transformer terminal.

Having thus described my invention,

1 what I claim is:

1. A magneto comprising horseshoe magnets, on armature having shaft extensions, a. distributor, a pair of gears for driving" the distributor including it gear on one of the shaft extensions, and a second gear meshing therewith, a tubular bearing for said second gear, said distributor comprising s rotating part movable with said second gear and pf'ovided in line with the of said tubular bearing with a contact member, a, trans former casing mounted wi .11 the upper part of the magnets above the armature, said casing having at its inner end an arm projecting outwardly through said tubular bearing, and provided at its end with a brush engaging the contact member of the arumture, o transformer supported in the magnet scent the armature and provided with an outwardly projecting terminal, a, member electrically connected to the aunt ture and adopted to be connected to said terminal, and a support for said member which permits the latter to he turned toward and from the terminal.

3. A. magneto comprising a field magnet, on armature, a transformer supported in the magnet ad c'nt the u tu1"e and having an out-war projecting" terminal, on adopted terminal, a, su ort said arm which peomits thofle away from the terminal, and 'urre'nt collecting comprising" ring and a brush, one moveole with the armature and the other carried hy said m.

magneto comprising a horse-whoa r to he turned toward and The cylinder can then-be 1 slid outward from its normal position id magnet, an armature with supporting mpportcd in the magnet above the armature 1 having an outwardly projecting termil, and a rigid arm adapted to connecti upper end to said terminal and at end having a brush engaging the ring. magneto comprising a horseshoe magnet, an armature with supporting extensions, a collector ring on one of shaft extensions, a transformer casing orted in the magnet adjacent the armaand having an outwardly projecting al, and a combined brush holder, conand loci: for the transformer casing, using age arm extending outwardly respect to the collector ring and adaptto he secured at its upper end to said a. Amagneto comprising a fieldmagnet, an armature, a'collector ring rotatable with the armature, a transformer casing suppo above the armature, and having an o twardly projecting terminal, an arm hava brush at its lower endengaging the c ctor ring and at its upper end having 11 sans for engaging said terminal, and a support for said arm arranged concentrisha-it extensions, a collector ring on one of.

id shaft extensions, a transformer casing cally with respect to the axis of the arma ture and adapted to be turned to swing the upper end of said arm toward or away from said terminal.

8. In a magneto, a magneto frame including field magnets and end plates, an arma-. ture supported by said frame and havinga collector ring, a transformer casing removably secured in said frame above'the armature and having an outwardly projecting terminal, a rigid arm having at its lower end a brush engaging the collector ring and having at its upper end means for engaging said terminal, a constituting a support for said arm swiveled to said frame concentrically with respect to the axis of the armature, whereby said arm may be turned to an upright position or may be swung away from said terminal to permit the removal of said transformer casing.

9. In a magneto, field magnets, an arms-- turehaving a hollow shaft extension, a cam having a hollow shank extending into said shaft extension, a gear on said shaft extension, a bearing ring for the armature on said shaft extension between the cam and the gear, and a screw extending axially of said shaftextension through the shank of the cam for securing the cam in position and. fol-clamping the bearing between the cam and the gear.

In testimony whereof, I hereunto aiiix my signature in the prescnce of two witnesses.

DOW B. HUGHES.

Witnesses A. F. Kwis, A. J, HUDSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

